He Jiankui: Gene Editing's Ethical Red Line
He Jiankui's controversial gene-edited babies using CRISPR ignited global debate on human germline editing and ethical limits (2018).
Topics: science, technology, individual and values
Example
In November 2018, Chinese scientist He Jiankui announced that he had created the world's first gene-edited babies, twin girls known as Lulu and Nana. He used CRISPR-Cas9 to edit the CCR5 gene, aiming to make them resistant to HIV. Scientists worldwide condemned the work as unsafe, medically unnecessary and done without proper consent or oversight. On 30 December 2019, a court in Shenzhen sentenced him to three years in prison and a fine of 3 million yuan, and banned him from reproductive medicine for life.
Key facts
- In November 2018 He Jiankui announced the birth of twin girls whose CCR5 gene he had edited with CRISPR to try to make them HIV-resistant.
- On 30 December 2019 a Shenzhen court sentenced He to three years in prison and a 3 million yuan fine, and banned him from reproductive medicine for life.
Limitations
- Little is publicly known about the children's health, so claims about harm or benefit to them are speculation.
Evaluations
science evaluation
Support
The case shows how a powerful tool like CRISPR can be used before scientists understand the risks, such as unintended changes elsewhere in the genome.
Counterargument
Gene editing also offers real hope: approved CRISPR treatments now exist for sickle cell disease, which edit a patient's own cells, not embryos.
Rebuttal
The key line is between treating one consenting patient and changing embryos whose edits pass to future generations; He crossed that line.
Additional support
HIV can already be prevented from passing to babies by other medical means, so the edit was not medically necessary.
technology evaluation
Support
CRISPR made gene editing cheap and easy enough for one scientist to attempt something this momentous, showing how access to technology outruns rules.
Counterargument
Technology itself is neutral; the failure was in oversight, since He hid his work from regulators.
Rebuttal
When tools become cheap, oversight must be built in, for example through registries of human gene-editing research.
Additional support
After the case, the WHO set up a global registry and advisory committee on human genome editing.
individual and values evaluation
Support
The twins could not consent to having their genes changed, which raises the value of protecting people who have no voice in a decision.
Counterargument
Parents make many choices for unborn children; some argue preventing disease could be a parent's right.
Rebuttal
Parental choice usually covers known, tested treatments; experimental edits with unknown risks go well beyond it.
Additional support
China tightened its laws on human gene editing after the case, showing values being turned into criminal penalties.
Sources
- Al Jazeera (2019-12-30): China 'gene-editing' scientist sentenced to three years in jail
- MIT Technology Review (2019-12-30): He Jiankui sentenced to three years in prison for CRISPR babies